Psychonautics
(重定向自Psychonaut)

![The San Pedro cactus (Echinopsis pachanoi) has been used for healing and religious divination in the Andes Mountains region for over 3000 years.[12]](/uploads/202502/05/Starr_070320-5799_Echinopsis_pachanoi1039.jpg)

Psychonautics (from the Greek ψυχή psychē ["soul", "spirit" or "mind"] and ναύτης naútēs ["sailor" or "navigator"] — "a sailor of the soul") refers both to a methodology for describing and explaining the subjective effects of altered states of consciousness, including those induced by meditation or mind-altering substances, and to a research paradigm in which the researcher voluntarily immerses himself or herself into an altered mental state in order to explore the accompanying experiences.